Quantcast

Latest Soil carbon Stories

2011-08-03 14:35:27

Breeding crops with roots a metre deeper in the ground could lower atmospheric CO2 levels dramatically, with significant environmental benefits, according to research by a leading University of Manchester scientist. Writing in the journal Annals of Botany, Professor Douglas Kell argues that developing crops that produce roots more deeply in the ground could harvest more carbon from the air, and make crops more drought resistant, while dramatically reducing carbon levels. In principle, any...

1114e4ec2a1b1d06606e92ec9b595680
2011-07-27 15:23:38

Scientists say a tundra fire in the circumpolar arctic released about as much carbon into the atmosphere as the tundra has stored in the previous 50 years. The study, published in the July 28 issue of Nature, of the Anaktuvuk River fire on Alaska's North Slope revealed just how quick a single tundra fire can offset or reverse a half-century worth of soil-stored carbon. "Fire has been largely absent from tundra for the past 11,000 or so years, but the frequency of tundra fires is increasing,...

2011-03-15 15:37:54

Turning back the climatic clock in Australia Improving land management and farming practices in Australia could have an effect on global climate change, according to a study published in the International Journal of Water. Natural Sequence Farming is a descriptor used when sustainable agriculture mimics the once highly efficient functions of the Australian landscape. NSF pioneer Peter Andrews of Denman in New South Wales and coordinator of the NSF movement, Duane Norris of Hardy's Bay, New...

2010-08-09 14:17:40

Web-based tool helps farmers reduce greenhouse gas losses and gain economic advantage Greenhouse gas markets, where invisible gases are traded, must seem like black boxes to most people. Farmers can make money on these markets, such as the Chicago Climate Exchange, by installing methane capture technologies in animal-based systems, no-till farming, establishing grasslands, and planting trees. Farmers, students, extension educators, offset aggregators, and other stakeholders need to understand...

f795f9e9d625d24a9bd8c0fe21de304a1
2010-03-25 08:31:14

Twenty years of field studies reveal that as the Earth has gotten warmer, plants and microbes in the soil have given off more carbon dioxide. So-called soil respiration has increased about one-tenth of 1 percent per year since 1989, according to an analysis of past studies in the March 24 issue of Nature. The scientists also calculated the total amount of carbon dioxide flowing from soils, which is about 10-15 percent higher than previous measurements. That number -- about 98 petagrams of...

b57b14f7fc09a747f7c1c929206ef06c1
2009-11-20 10:28:19

Sustainable farming, initially adopted to preserve soil quality for future generations, may also play a role in maintaining a healthy climate, according to researchers at the Department of Energy's Oak Ridge and Los Alamos national laboratories. ORNL and LANL scientists are exploring the large potential of the earth's soils to sequester carbon, with estimates claiming that new land-use practices could greatly reduce U.S. carbon emissions by as much as 25 percent. But exactly which practices...

2009-01-16 11:42:56

A recent study has confirmed that although there was a large reduction of organic carbon and total nitrogen pools when prairies were first cultivated and drained, there has been no consistent pattern in these organic matter pools during the period of synthetic fertilizer use, that is, from 1957-2002."For these prairie soils, some of the best in the world, declines in organic matter from cultivation were likely completed by the 1950s, and since then organic matter pools have remained...

2008-12-09 15:43:00

Methods proven worldwide can sustain farmer profits, address hunger and malnutrition and restore ecological health KUTZTOWN, Pa., Dec. 9 /PRNewswire-USNewswire/ -- To best feed the world, a growing number of researchers, development experts, farming groups and environmentalists are calling for new emphasis on sustainable agricultural practices that make a sharp break from current policies. A newly released Rodale Institute research paper reviewing replicated research shows that the latest...

e07901aba543a2bf8d4c49e5f5b28a731
2008-12-03 08:37:16

Converting forests or fields to biofuel crops can increase or decrease greenhouse gas emissions, depending on where "“ and which "“ biofuel crops are used, University of Illinois researchers report this month. The researchers analyzed data from dozens of studies to determine how planting new biofuel crops can influence the carbon content of the soil. Their findings appear this month in the journal Global Change Biology Bioenergy. Plants use the sun's energy to convert carbon...

86a12f1594b831da5a7e62c36b3edde21
2008-03-25 16:31:57

Scientists Integrate Soil Science Data with Remote Sensing to Report Soil Carbon Flux Resulting from Land Management Changes.Changes in soil carbon occur with changes in land management. Scientists at Oak Ridge National Laboratory and The University of Tennessee investigated quantifying soil carbon changes over large regions. They integrated remote sensing products with a national carbon accounting framework in a project funded by the U.S. National Aeronautics and Space Administration, Office...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
Related